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AVERY FISK · AF COACHING

Androgens

Formebolone

A historical anabolic steroid with small biochemical studies that do not establish modern functional or growth benefits.

Very small historical clinical studies; evidence checked 2026-10-01

Formebolone molecular structure
Structure reference · C21H28O4

Practical use

Evidence interpretation and concrete review questions

Name the measured protein
Keep albumin distinct from skeletal muscle.
Check the follow-up endpoint
For growth claims, ask whether final height was actually measured.
Preserve the clinical diagnosis
Kidney disease and growth delay are separate research settings.

Protein labeling in kidney disease

Historical growth-delay report

PubChem chemical identity; checked October 1, 2026

Overview

Formebolone was examined in patients with kidney disease and in children with growth delay. These reports used different populations and endpoints; a protein-synthesis signal is not equivalent to improved strength, kidney health or final adult height.

Risks and limitations

The tiny kidney study cannot characterize safety. In growth research, accelerated bone maturation is a relevant tradeoff; a short-term height increase alone cannot settle final-height outcomes.

How to read this

Older primary studies can explain why a compound attracted interest while leaving its clinical value unresolved.

Research explained

Protein labeling in kidney disease

Who was studied

Seven patients with nephrosis or renal insufficiency; labeled leucine incorporation into plasma proteins was measured.

What was found

Incorporation into the albumin fraction increased after formebolone administration.

What it cannot establish

A biochemical proxy in seven patients, without a clinical outcome comparison described in the abstract; it does not demonstrate muscle gain or better kidney outcomes.

Read the original study

Historical growth-delay report

Who was studied

Twenty children with nonpituitary growth delay and normal growth-hormone stimulation testing.

What was found

The report described height increases, particularly around puberty, alongside accelerated bone age.

What it cannot establish

The abstract is insufficient to independently establish final adult-height benefit or a modern comparative safety assessment.

Read the original study

Albumin synthesis is not a muscle measurement

Tracer incorporation into a plasma protein cannot be relabeled as kilograms of new muscle.

Supporting source

Growth has more than one clock

Chronological age, height velocity and bone age measure different aspects of development.

Supporting source

Claims versus findings

Not established

An albumin-labeling increase proves improved physical function.

The experiment measured protein labeling, not functional capacity.

Check the evidence

Common questions

Can the childhood report justify treating ordinary short stature?

No. Its limited historical findings cannot supply an individual diagnosis or current care decision.

Source

Sources

Protein labeling in kidney disease

Historical growth-delay report

PubChem chemical identity; checked October 1, 2026

Sources checked 2026-10-01.

General education; not a personal treatment plan.